589a5f9aeb
The new version of the urfave/cli library is moving to generics, and it's completely unclear to me why this is an improvement. Their new API is very complicated to understand, which for me, defeats the purpose of golang. In parallel, I needed to do some upcoming cli API refactoring, so this was a good time to look into new libraries. After a review of the landscape, I found the alexflint/go-arg library which has a delightfully elegant API. It does have a few rough edges, but it's otherwise very usable, and I think it would be straightforward to add features and fix issues. Thanks Alex!
78 lines
1.9 KiB
Go
78 lines
1.9 KiB
Go
// Mgmt
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// Copyright (C) 2013-2024+ James Shubin and the project contributors
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// Written by James Shubin <james@shubin.ca> and the project contributors
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package main
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import (
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"context"
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_ "embed"
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"fmt"
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"os"
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"github.com/purpleidea/mgmt/cli"
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cliUtil "github.com/purpleidea/mgmt/cli/util"
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"go.etcd.io/etcd/server/v3/etcdmain"
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)
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// These constants are some global variables that are used throughout the code.
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const (
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tagline = "next generation config management"
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debug = false // add additional log messages
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verbose = false // add extra log message output
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)
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// set at compile time
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var (
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program string
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version string
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)
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//go:embed COPYING
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var copying string
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func main() {
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// embed etcd completely
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if len(os.Args) >= 2 && os.Args[1] == "etcd" {
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args := []string{}
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for i, s := range os.Args {
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if i == 0 { // pop off our argv[0] and let `etcd` be it
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continue
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}
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args = append(args, s)
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}
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etcdmain.Main(args) // this will os.Exit
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return // for safety
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}
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data := &cliUtil.Data{
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Program: program,
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Version: version,
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Copying: copying,
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Tagline: tagline,
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Flags: cliUtil.Flags{
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Debug: debug,
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Verbose: verbose,
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},
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Args: os.Args,
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}
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if err := cli.CLI(context.Background(), data); err != nil {
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fmt.Println(err)
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os.Exit(1)
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return
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}
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}
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